LinuxNetworkService

/sbin/ifconfig（查看网络接口） /sbin/ifconfig eth0（查看指定接口） Ifconfig –a （产看说有接口） /sbin/route （产看路由） Ping –c(count) ip 平多少次

traceroute 显示经过的路由器的IP Hostname Nslookup

Dhclient(自动获得IP) Ifconfig eth0 dynamic

Ifconfig eth0 ip netmask 255

Ifconfig eth0 hw ether xx: xx: xx: xx: xx: xx after eth0 down Route del/add default gw ip

Route U:userd G:gateway H:host M:changed !unusable metric:route 消耗值，优先级 Netconfig

网络服务启动脚本 /etc/init.d/network restart/stop/start 网络接口配置文件

/etc/sysconfig/network-scripts/ifcfg-xxx:DEVICE,ONBOOT,BOOTPROTO=static/dhcp,IPADDR,NETMASK,GATEWAY

Ifdown/ifup eth0,ifdown eth0 ; ifup eth0 主机名称配置文件 /etc/sysconfig/network 本地主机名称解析文件 /etc/hosts

域名服务器配置文件 /etc/resolv.conf NFS文件系统

Nfs-utils+portmap(default installed)

Portmap提供RPC远程过程调用服务支持

NFS服务器配置文件/etc/exports格式：nfs共享目录名称 客户端主机地址（设置选项）

客户端主机地址：ip,fqdn,lan seg,*.domain 设置选项：sync,ro,rw

Showmount nfs server ip ---link info

Showmount –e nfs server ip ---export direct list Showmount –d nfs server ip ---mounted share direct Showmount –a nfs server ip ---client and mounted direct /etc/exports effect by exportfs –rv/-auv/-av System-config-nfs

Mount –t nfs nfsserveradd:sharedirect localmountdirect Mount |grep mnt DHCP & NIS

/usr/sbin/dhcpd ---executive

/etc/rc.d/init.d/dhcpd ---launch script

/etc/dhcpd.conf ---config file <-/usr/share/doc/dhcp-3.0.1/dhcpd.conf.sample 参数;ddns-update-style interim; Default-lease-time; Max-lease-time;

选项option domain-name XXX;

Option domain-name-servers ip,ip; ----overwrite resolv.conf 声明subnet net mask{ 参数;

Range ipmin ipmax;

选项option subnet-mask; Option routers; Host name {

Hardware Ethernet mac-add; Fixed-address ip; option subnet-mask; Option routers; } }

多网络接口dhcp配置文件/etc/sysconfig/dhcpd:DHCPDARGS=eth0 租约文件：/var/lib/dhcp/dhcpd.leases NIS

NIS server:ypserv NIS client:ypbind

NIS server query and manege tool:yp-tools Portmap,time,time-udp xinetd restart

Nisdomainname uth Echo ‘/bin/Nisdomainname XXX’ >> /etc/rc.d/rc.local Echo ‘nisdomain=XXX’ >> /etc/sysconfig/network

/etc/ypserv.conf:配置NIS server database access control

主机地址ip,name,net seg,*:网络域名*:映射数据库类型*:安全等级none,port,deny /var/yp/securenets:NIS 客户端访问控制 Host ip Netmask ip

Service portmap ypserv 35 yppasswdd 35

/usr/lib/yp/ypinit –m =make --build nis database at /var/yp/nisdomainname/ to all nis slave servers listed in /var/yp/ypservers Client

Ypbind+yp-tools

Echo ‘192.168.11.11 nisservername ‘ >> /etc/hosts Nisdomainname uth

Echo ‘/bin/Nisdomainname XXX’ >> /etc/rc.d/rc.local Echo ‘nisdomain=XXX’ >> /etc/sysconfig/network Echo ‘domain uth server as’ >> /etc/yp.conf

/etc/nsswitch.conf:passed,shadow,group,hosts:files nis dns Service portmap ypbind 35

Yptest: test nis domain name,host,db,content

Ypwhich:show nis server using,ypwhich –x:db,映射文件 Ypcat –x=ypwhich –x ypcat dbname:show content of db